Composition of matter for filling tires.



UNITED: STATES PATENT OFFICE.

ANDREW J. BISHOP. OF

ST. PAUL, MINNESOTA.

COMPOSITION OF MATTER FOR FILLING TIRES.

1 099 335 Specification of Letters Patent.

No Drawing.

To all whom it may concern Be it known that I, ANDREW J. Bisiior, acitizen of the United States, residing at St. Paul, in the county ofRamsey and State of Minnesota, have invented a new and usefulComposition of Matter for Filling Tires, of which the following is aspecification.

My composition consists of the following ingredients combined insubstantially the following proportions, viz.: Glue, about thirty-twopounds; glycerin, about fifty-one pounds; raw linseed oil, about eightpounds; molasses, about eight pounds; and pulverized or ground cork,about one pound.

In the preparation of the improved filler the glue is first dissolved inwater, and then put with all the other ingredients into a pot or kettle,where the mixture is boiled until the water which has been added todissolve the glue has been boiled out. The ingredients thereby becomethoroughly coin mingled, and when allowed to cool will set into acoherent, pliable, resilient, solid, mass.

In use, the mixture can be injected into a tubular tire while still hotand fluid, so tha't it will set w thin the tire, or, if it is to be usedwith a tire which is open, such as the casing for. double tube tires, itcan be first molded or cast into a cylinder, and then placed within thecasing. When it is injected hot, it will expand slightly in cooling, soas completely to fill the tube. In either case the mixture will form. aresilient, pliable non-inflan1mabl'e, and non-combustible solid PatentedJune 9, 1914.

Application filed November 4, 1912. Serial No. 729,308.

filler which will make the tire independent of punctures and which willavoid the trouble attendant upon the blowing out of air inflated tubes.The filler thus formed will form a coherent, elastic and pliablecushion. The glue forms the body of the cushion and gives it coherenceand strength, but if used alone it will harden and become brittle inuse. I therefore use molasses and glycerin to make and keep it elasticand pliable, and add the linseed oil to prevent the molasses fromsugaring. I use pulverized or ground cork as one of the ingredients, inorder to lighten the weight of the filler.

It is to be understood that the proportions specified are those which Ihave found to produce the best results, but these proportions can beslightly varied without materially altering the character or quality ofthe tiller.

I claim as my invention:

The herein described composition of matter for filling tubular tires,consisting of a cooked mixture of glue about thirty-two pounds, glycerinabout fifty-one pounds, raw linseed oil about eight pounds, molassesabout eight pounds, and pulverized cork about one pound.

In testimony whereof I aflix my signature in presence of two witnesses.

ANDREW J. BISHOP.

Witnesses:

ARTHUR I. Lo'rnnor, I-I. Swanson.

